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Approach to scaling in inclusive π+/π− ratios at 147 GeV/c

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Zeitschrift für Physik C Particles and Fields

Abstract

The ratio of hadronic π+/π− production has been studied in the target fragmentation region of π+ p, π− p,K + p andp p collisions at 147 GeV/c beam momentum. The difference between this ratio in the π+ p and π− p data is less than at lower energies but still present. No difference exists anymore for the π+/π− ratio at this energy betweenK + p andpp collisions. Exclusion of diffraction dissociation and resonance production does not change the main conclusions. The energy dependence of the ratio for π+ p and π− p collisions gives evidence for a universal asymptotic ratio for all beams. Thep t -dependence at low-p t is in agreement with the expectation from geometrical correlation of the valence quarks.

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Author information

Author notes

  1. B. M. Whyman

    Present address: University of Liverpool, Liverpool, England

  2. L. Bachman

    Present address: Universite de Neuchâtel, Neuchâtel, Switzerland

  3. P. Lucas

    Present address: Duke University, 27706, Durham, NC, USA

  4. R. Dolfini

    Present address: Sezione INFN, Instituto di Fisica Nucleare, Pavia, Italy

  5. D. Huang & Y. Wu

    Present address: Institute of High Energy Physics, Beijing, Peoples Republic of China

  6. P. Lutz

    Present address: Collège de France, Paris, France

  7. P. C. Trepagnier

    Present address: Automix, 01803, Burlington, MA, USA

  8. H. de Bock

    Present address: Maritiem Research Instituut Nederland, Wageningen, The Netherlands

  9. M. Schouten

    Present address: CERN, Geneva, Switzerland

  10. P. Stamer

    Present address: Seton Hall University, 07079, South Orange, NJ, USA

  11. T. W. Ludlam

    Present address: Brookhaven National Laboratory, 11973, Upton, NY, USA

Authors and Affiliations

  1. Brown University, 02912, Providence, RI, USA

    D. Brick, H. Rudnicka, A. M. Shapiro & M. Widgoff

  2. University of Cambridge, Cambridge, England

    R. E. Ansorge, W. W. Neale, D. R. Ward & B. M. Whyman

  3. Illinois Institute of Technology, 60616, Chicago, IL, USA

    R. A. Burnstein & H. A. Rubin

  4. Indiana University, 47401, Bloomington, IN, USA

    E. D. Alyea Jr.

  5. Johns Hopkins University, 21218, Baltimore, MD, USA

    L. Bachman, C. Y. Chien, P. Lucas & A. Pevsner

  6. Laboratory for Nuclear Science and Department of Physics, Massachusetts Institute of Technology, 02139, Cambridge, MA, USA

    J. T. Bober, R. Dolfini, T. A. J. Frank, E. S. Hafen, P. Haridas, D. Huang, R. I. Hulsizer, V. Kistiakowsky, P. Lutz, S. H. Oh, I. A. Pless, T. B. Stoughton, V. Suchorebrow, S. Tether, P. C. Trepagnier, Y. Wu & R. K. Yamamoto

  7. Universite de l'Etat, B-7000, Mons, Belgium

    F. Grard, J. Hanton, V. Henri, P. Herquet, J. M. Lesceux, P. Pilette & R. Windmolders

  8. University of Nijmegen and NIKHEF-H, Nijmegen, The Netherlands

    H. de Bock, F. Crijns, W. Kittel, W. Metzger, C. Pols, M. Schouten & R. Van de Walle

  9. Oak Ridge National Laboratory, 37830, Oak Ridge, TN, USA

    H. O. Cohn

  10. Sezione INFN, Istituto di Fisica Nucleare, Pavia, Italy

    G. Bressi, E. Calligarich, C. Castoldi & S. Ratti

  11. Rutgers University, 08903, New Brunswick, NJ, USA

    R. DiMarco, P. F. Jacques, M. Kalelkar, R. J. Plano, P. Stamer & T. L. Watts

  12. Stevens Institute of Technology, 07030, Hoboken, NJ, USA

    E. B. Brucker, E. L. Koller & S. Taylor

  13. Technion, Haifa, Israel

    L. Berny, S. Dado, J. Goldberg & S. Toaff

  14. Tel-Aviv University, Ramat-Aviv, Israel

    G. Alexander, O. Benary, J. Grunhaus, R. Heifetz & A. Levy

  15. University of Tennessee, 37916, Knoxville, TN, USA

    W. M. Bugg, G. T. Condo, T. Handler, E. L. Hart & A. H. Rogers

  16. Weizmann Institute of Science, Rehovot, Israel

    Y. Eisenberg, D. Hochman, U. Karshon, E. E. Ronat, A. Shapira, R. Yaari & G. Yekutieli

  17. Yale University, 06520, New Haven, CT, USA

    T. W. Ludlam, R. Steiner & H. D. Taft

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  1. D. Brick
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  2. H. Rudnicka
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  3. A. M. Shapiro
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  4. M. Widgoff
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  5. R. E. Ansorge
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  9. R. A. Burnstein
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  11. E. D. Alyea Jr.
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  13. C. Y. Chien
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Brick, D., Rudnicka, H., Shapiro, A.M. et al. Approach to scaling in inclusive π+/π− ratios at 147 GeV/c. Z. Phys. C - Particles and Fields 13, 11–17 (1982). https://doi.org/10.1007/BF01553627

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  • DOI: https://doi.org/10.1007/BF01553627

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